被削材の再生びびり振動の発生 : 第5報, 再生びびり振動データのフーリェ変換による安定判別

概要

論文の詳細を見る
It is important for fully automated machining systems or dynamic performance tests of a machine tool, to detect chatter and decide whether the cutting condition is stable or not. In this study, a method for judging the dynamic instability of cutting process is proposed. It is based on the ratio of inner to outer modulation amplitude estimated by the Fourier transform of regenerative chatter vibrations in every revolution of the workpiece. The validity of the present method is verified from numerical simulation data of regenerative chatter. Furthermore, we obtain the experimental limits of cutting process by this method, and compare them with the predicted limits which are calculated by the authors' criterion proposed in the previous paper. The predicted limits are almost in accord with the experimental ones at the cutting speed of 40-160 m/min and feed rate of 0.07-0.19 mm/rev.
一般社団法人日本機械学会の論文
1992-09-25